Question
The average weight of five friends A, B, C, D and E is
(x+5) years while the average weight of C and E is (x-5) kg. If the weight of another person F is also added, then average weight of all of them is reduced by 6 kg. Find the value of ‘x’ if average weight of A, B, D and F is 96 kg.Solution
Total weight of friends A, B, C, D and E = 5(x+5) kg So, Total weight of A, B and D = 5(x+5) – 2(x-5) = (3x+35) kg Weight of F = [(x+5-6)×6] - [5(x+5)] => F = (x-31) kg According to the question, => (3x+35) + (x-31) = 96 × 4 => 4x + 4 = 384 => 4x = 380 => x = 95
If all the digits of the number 789615432 are arranged in decreasing order, then sum of 5 th and 6 th digits (from the left end) of the number thus form...
What should be the third step of the following input?
Input: 91 273 35 249 553 511 201 183
If all the consonants in words are changed to the previous letter how many words have more than at least one vowel?
- A boat's speed is 13.5 km/h when moving against the current and 18.3 km/h when moving along with the current. Determine the speed of the stream.
Which of the following is true with respect to U as per the given information?
After interchanging the given two numbers and two signs what will be the values of equation (I) and (II) respectively?
– and ×, 6 and 4
Statements : I < B < C = D ≤ E < G > F < H < J
Conclusions :
I. I < E
II. D > J
दो संख्याएँ किसी तीसरी संख्या से क्रमषः 20% और 50% अधिक हैं। प�...
Statement: For a safer world, there is a crucial requirement to teach self-defence to girls from an early age, so that they grow up to become self-reli...
The quality of an MP3 file depends largely on the .......................................... .
